This is the Hollis Low Pressure(LP) Maxflex Hose 32 For Scuba Diving Regulator Features: Improve Flexibility, Lower Total Weight and Add Extreme Comfort to Regulator Hose Threads: 3/8" Durable Chrome Plated Corrosion Resistant Fittings Braided Hose Designed to Outperform and Outlive Traditional Rubber Hoses "